Tipo
Capítulo em Livro
Título
Biophysical and Spectroscopic Methods for Monitoring Protein Misfolding and Amyloid Aggregation
Participantes na publicação
Joana S. Cristóvão (Author)
BioISI - Biosystems & Integrative Sciences Institute
Bárbara J. Henriques (Author)
Dep. Química e Bioquímica
BioISI
Cláudio M. Gomes (Author)
Dep. Química e Bioquímica
BioISI
Resumo
Proteins exhibit a remarkable structural plasticity and may undergo conformational changes resulting in protein misfolding both in a biological context and upon perturbing physiopathological conditions. Such nonfunctional protein conformers, including misfolded states and aggregates, are often associated to protein folding diseases. Understanding the biology of protein folding diseases thus requires tools that allow the structural characterization of nonnative conformations of proteins and their interconversions. Here we present detailed procedures to monitor protein conformational changes and aggregation based on spectroscopic and biophysical methods that include circular dichroism, ATR-Fourier-transformed infrared spectroscopy, fluorescence spectroscopy and dynamic light scattering. To illustrate the application of these methods we report to our previous studies on misfolding, aggregation and amyloid fibril formation by superoxide dismutase 1 (SOD1), a protein whose toxic deposition is implicated in the neurodegenerative disease amyotrophic lateral sclerosis (ALS).
Editor
Cláudio M. Gomes
Instituição
Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Portugal.
Suporte
Protein Misfolding Diseases - Methods and Protocols
Identificadores da Publicação
ISSN - 1064-3745
ISBN - 9781493988198
Local
New York, NY
Editora
Humana Press
Coleção
Methods in Molecular Biology
Número de Páginas
15
Página Inicial
3
Página Final
18
Identificadores do Documento
URL -
https://www.ncbi.nlm.nih.gov/pubmed/30341600
URL -
https://link.springer.com/protocol/10.1007/978-1-4939-8820-4_1
DOI -
https://doi.org/10.1007/978-1-4939-8820-4_1
Identificadores de Qualidade
SCIMAGO Q3 (2018) - 0.605 - Molecular Biology
Keywords
Protein aggregation
Fourier-transformed infrared spectroscopy
Fluorescence
Dynamic light scattering
Circular dichroism
Amyloid
ALS
Protein misfolding
SOD1
Thioflavin T